Callahan G-to-H

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Callahan G-to-H
x = 34, y = 23, rule = B3/S23 4bo9bo$4b3o5b3o$bo5bo3bo$2bo3b2o3b2o$3o$9bo$8bobo$8bobo$9bo$31bo$31bo$ 20b2o9b3o$14b2o4b2o11bo$8b2o3b2o$7bo2bo4bo$2b2o4b2o$bobo$bo$2o$10b2o$ 10bo$11b3o$13bo! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ AUTOSTART ]] #C [[ THUMBNAIL THUMBSIZE 3 WIDTH 600 HEIGHT 600 GPS 20 LOOP 96 ZOOM 16 PAUSE 2 T 95 PAUSE 2 AUTOSTART ]]
Pattern type Conduit
Conduit type Stable
Input Glider
Output Herschel
Number of cells 38
Bounding box 22×23
Discovered by Paul Callahan
Year of discovery 1998

A Callahan G-to-H is a stable glider-to-Herschel converter discovered by Paul Callahan in November 1998. The initial stage converts two gliders into a Herschel. In the infobox pattern, a ghost Herschel marks the output location. The south-east glider deletes the extra beehive. The north-west eater 1 can be replaced with a toad to give slightly more clearance on that side.

The cleanup glider (to clean up the beehive) coming from the southeast can be supplied by an Fx77 + L112 + Fx77 Herschel track following the converter, which results in a recovery time of 575 ticks -- or by reflecting the output Herschel's FNG with various combinations of bumpers, bouncers, and Snarks, as in the following p8 G-to-H, or adding a L156 and reflecting its spare glider. As a 2G-to-H, or if overclocking is used with appended conduits with a correctly timed output glider, it has a repeat time of 92 ticks.

x = 34, y = 34, rule = B3/S23 4bo9bo$4b3o5b3o$7bo3bo$2bo3b2o3b2o$3bo$b3o4$31bo$31bo$20b2o9b3o$20b2o 11bo$8b2o$7bo2bo$2b2o4b2o$bobo$bo$2o$10b2o$10bo$11b3o$13bo11b2o$21b2o 2b2o$20bobo$21bo$17bo$16bobo4b2o$15bo3bo3bo$14bo3bo5b3o$13bo3bo8bo$12b o3bo$13bobo$14bo! #C [[ THUMBSIZE 2 THEME 6 GRID GRIDMAJOR 0 SUPPRESS THUMBLAUNCH ]] #C [[ THUMBNAIL THUMBSIZE 3 WIDTH 600 HEIGHT 600 GPS 20 LOOP 260 ZOOM 16 PAUSE 2 T 91 PAUSE 2 AUTOSTART ]]
The p8 G-to-H, with a minimum recovery
time of 192 ticks (or 96 via overclocking)
(click above to open LifeViewer)
RLE: here Plaintext: here

See also

External links